package com.lzc.ai.controller;

import com.lzc.ai.model.vo.MessageVO;
import com.lzc.ai.repository.ChatHistoryRepository;
import com.lzc.ai.repository.RedisChatMemory;
import lombok.RequiredArgsConstructor;
import org.springframework.ai.chat.messages.Message;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

/**
 * @Author lizhichuan
 * @Date: 2025/6/3 10:55
 * @Version: v1.0
 */
@RequiredArgsConstructor
@RestController
@RequestMapping("/ai/history")
public class ChatHistoryController {


    @Autowired
    private ChatHistoryRepository chatHistoryRepository;

//    @Autowired
//    private ChatMemory chatMemory;

     @Autowired
     private RedisChatMemory redisChatMemory;


    /**
     * 查询会话历史列表
     *
     * @param type 业务类型，如：chat,service,pdf
     * @return chatId列表
     */
    @GetMapping("/{type}")
    public List<String> getChatIds(@PathVariable("type") String type) {
        return chatHistoryRepository.getChatIds(type);
    }

    /**
     * 根据业务类型、chatId查询会话历史
     *
     * @param type   业务类型，如：chat,service,pdf
     * @param chatId 会话id
     * @return 指定会话的历史消息
     */
    @GetMapping("/{type}/{chatId}")
    public List<MessageVO> getChatHistory(@PathVariable("type") String type, @PathVariable("chatId") String chatId) {
//        List<Message> messages = chatMemory.get(chatId, Integer.MAX_VALUE);
        List<Message> messages = redisChatMemory.get(chatId, Integer.MAX_VALUE);
        if (messages == null) {
            return List.of();
        }
        return messages.stream().map(MessageVO::new).toList();
    }

}